What are some use cases for the decorator pattern in Python?

What are some use cases for the decorator pattern in Python?

The decorator pattern is useful for adding functionality to existing objects without modifying their structure. Common use cases include logging, access control, and caching.

Can you give me an example of a logging decorator?

Sure! Here's a simple logging decorator:

def log_function_call(func):
    def wrapper(*args, **kwargs):
        print(f'Calling {func.__name__} with {args} and {kwargs}')
        return func(*args, **kwargs)
    return wrapper

How would I use this logging decorator?

You can use it by applying the decorator to a function like this:

@log_function_call
def my_function(x, y):
    return x + y

What are some other common decorators in Python?

Other common decorators include @staticmethod, @classmethod, and @property, which are used for defining methods in classes.